Frank c



(No Model.)

F. O. F. KNAAK.

APPARATUS FOR BATHING PURPOSES.

Patented Feb. 7, 1888.

A lIVl/E/VTOR /WA 6. fi/AWA ATTORNEY WITNESSES n PETERS,PholoLnhogr-when waufin mm. D. C.

ATENI FFICE.

FRANK O. F. KNAAK,

OF NE\V YORK, N. Y.

APPARATUS FOR BATHING PURPOSES.

SPECIFICATION forming part of Letters Patent No. 377,394, dated February'7, 1888.

(No model.)

To aZZ 2072,0721 it may concern.-

Be it known that I, FRANK G. F. KNAAK, a citizen of the United States,and a resident of New York, in the county of New York and State of NewYork, haveinvented certain new and useful Improvements in Apparatus forBathing Purposes, of which the following is aspecification.

My invention is an improvement in apparatus for bathing purposes; and itconsists in the construction, arrangement, and combination of partshereinafterdescribed and claimed.

The object of my invention is to produce a cheap, compact, durable, andportable or stationary apparatus by which the benefits of a chemical,mineral, or other form of medicinal bath may be secured. In my apparatuscompressed air, carbonic-acid gas, any ofthe mincral waters used forthis purpose, or chemicals-such as chlorine or nitro-muriatic acid,sulphur, &c.may be employed.

In the following description reference is to be had to the accompanyingdrawings, forming part of this specification, in which similar lettersof reference denote like parts throughout the several views.

Figure 1 is a partial elevation and partial vertical section of mybathing apparatus. Figsl 2 and 3 are sectional views of different formsof an attachment I employ, and Fig. 4 a top plan thereof.

A is a compressed-air vessel of any suitable form, and A. an air-pumpfor filling the same with air, which enters at a; or said tank may befilled with carbonic-acid gas under pressure, if desired, or any of thesubstances herein named or others that are used for similar purposes.

B is a bath-tub of usual form, provided with a perforated removablebottom, as shown. Beneath this removable bottom is placed a perforatedcoil of tubing, 0, which communicates with the air tank or vessel bymeans of a pipe, 0, provided with a stop-cock, c.

The operation of this device is as follows: The tub being filled withwater, the air-tank with compressed air, carbonic-acid gas, or othersubstance, and the cock 0 being opened, the air or gas under pressurewill pass down through tube cinto the perforated coil 0, out throughsaid perforations, and up through the perforations in the bottom B, asshown, pronects, forming a blow-pipe.

ducing an effervescence,ebullition,or bubbling of the water in the tub,causing a sensation to the bather both delightful and refreshing.

I have shown an attachment to my bathing apparatus by which the benefitsof salt or carbonic acid or other suitable substances are provided, andit is to this feature that my invention particularly relates. Attachedto the tube 0, as shown, is a vessel, D, of the shape shown in Fig. 4,having an enlarged lower chamber and two passages communicatingtherewith, with which separate portions of pipe 0 connect, and also apassage by means of which a water-pipe, E, communicates therewith. Inthe bottom of this vessel may be placed either salt, carbonic acid, orother desired substance in a finely-powdered condition, and the tank Abeing filled with compressed air, the cock 0" being opened, the airunder pressure will be blowninto and through the substance in the vesselD, as shown in Fig. 7, and said substance will be carried down throughthe perforations in said pipe and up through the perforationsin thebottom B,producing results similar to those hereinbefore described.

In Fig. 6 the pipe E, for admitting water to the tub, is attached tovessel D, as shown,and to pipe E a hose may be secured. The tube 0, or aportion thereof, extends into and across the vessel D and into theoutlet on the other side, with which the other portion of tube 0, whichcommunicates with the bath-tub, con- The water enters through pipe E andmingles with the salt or other substance, and passes down through thepipe or tube 0, together with the compressed air, and up through theperforations in coil 0 and the perforated bottom B, as in the firstinstance. In this case the tub or tank may be partly filled with waterbefore admitting the water through pipe E and vessel D, if desired.

It is evident that this apparatus may be either portable or stationary,and that it may be constructed either on as large or as small a scale asmay be desired; also, that other machinery or mechanism on a largerscale may be employed for furnishing air under press ure.

Having fully described my invention, its construction and operation,whatI claim, and desire to secure by Letters Patent, is-

1. The combination, with a bathing-tank v provided with a perforatedcoil in the bottom thereof and a removable bottom over said coil, of anair-tank, a vessel having an enlarged lower portion and openings in itsopposite sides, a pipe attached to the air-tank and communicating withone of the side openings in said vessel, extending part way across andforming an injectornozzle therein, and a pipe attached to the oppositeside opening and communicating with the coil in the bathing-tank.

1 2. The combination, with a bathing-tank provided with a perforatedcoil in the bottom thereof, of an air-tank, a vessel having an enlargedlower portion and openings in its opposite sides and top, a water-pipecommunicating with the openings in the top of said vessel, a pipeattached to the air-tank and com- 'municating with one of the sideopenings in 20 FRANK O. F. KNA-AK.

\Vitnesses:

W. W. OANFIELD, L. L. DUERDEN.

